SDS - Macspred Metmac 600 - 230201

Product Name: MACSPRED METMAC 600 WG HERBICIDE Page: 1 of 6 This version issued: February, 2023 SAFETY DATA SHEET Issued by: Macspred Pty Ltd Phone: Poisons Information Centre: 13 1126 from anywhere in Australia, (0800 764 766 in New Zealand)

Section 1 - Identification of The Material and Supplier Macspred Pty Ltd Phone: Chemical nature: Metsulfuron Methyl is a sulfonylurea derivative. Trade Name: MACSPRED METMAC 600 WG HERBICIDE APVMA Code: 52735 Product Use: Agricultural herbicide for use as described on the product label. Creation Date: July, 2013 This version issued: February, 2023 and is valid for 5 years from this date. Poisons Information Centre: Phone 13 1126 from anywhere in Australia

Section 2 - Hazards Identification Statement of Hazardous Nature SUSMP Classification: None allocated. ADG Classification: Class 9: Miscellaneous Dangerous Goods. UN Number: 3077, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. GHS Signal word: WARNING Hazardous to the aquatic environment (chronic) – category 1 HAZARD STATEMENT: H410: Very toxic to aquatic life with long lasting effects. PREVENTION P102: Keep out of reach of children. P262: Do not get in eyes, on skin, or on clothing. P281: Use personal protective equipment as required. RESPONSE P337: If eye irritation persists: seek medical attention. P353: Rinse skin or shower with water. P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P332+P313: If skin irritation occurs: Get medical advice. P337+P313: If eye irritation persists: Get medical advice. STORAGE P404: Store in a closed container. P410+P403: Protect from sunlight. Store in a well-ventilated place. DISPOSAL P501: Dispose of contents and containers to landfill.

Emergency Overview Physical Description & Colour: Off white granulated solid. Odour: No odour. Major Health Hazards: Systemic poisoning by sulfonylurea based compounds is unlikely, unless large quantities have been ingested. No accounts of poisoning by Metsulfuron-methyl are currently available. No significant risk factors have been found for this product.

Section 3 - Composition/Information on Ingredients

This is a commercial product whose exact ratio of components may vary slightly. Minor quantities of other non hazardous ingredients are also possible.

---

Product Name: MACSPRED METMAC 600 WG HERBICIDE Page: 2 of 6 This version issued: February, 2023 SAFETY DATA SHEET Issued by: Macspred Pty Ltd Phone: Poisons Information Centre: 13 1126 from anywhere in Australia, (0800 764 766 in New Zealand)

The SWA TWA exposure value is the average airborne concentration of a particular substance when calculated over a normal 8 hour working day for a 5 day working week. The STEL (Short Term Exposure Limit) is an exposure value that may be equalled (but should not be exceeded) for no longer than 15 minutes and should not be repeated more than 4 times per day. There should be at least 60 minutes between successive exposures at the STEL. The term "peak "is used when the TWA limit, because of the rapid action of the substance, should never be exceeded, even briefly.

Section 4 - First Aid Measures General Information: You should call The Poisons Information Centre if you feel that you may have been poisoned, burned or irritated by this product. The number is 13 1126 from anywhere in Australia (0800 764 766 in New Zealand) and is available at all times. Have this SDS with you when you call. Inhalation: First aid is not generally required. If in doubt, contact a Poisons Information Centre or a doctor. Skin Contact: Gently brush away excess particles. Irritation is unlikely. However, if irritation does occur, flush with lukewarm, gently flowing water for 5 minutes or until chemical is removed. Eye Contact: Quickly and gently brush particles from eyes. No effects expected. If irritation does occur, flush contaminated eye(s) with lukewarm, gently flowing water for 5 minutes or until the product is removed. Obtain medical advice if irritation becomes painful or lasts more than a few minutes. Take special care if exposed person is wearing contact lenses. Ingestion: If product is swallowed or gets in mouth, do NOT induce vomiting; wash mouth with water and give some water to drink. If symptoms develop, or if in doubt contact a Poisons Information Centre or a doctor.

Section 5 - Fire Fighting Measures Fire and Explosion Hazards: There is little risk of an explosion from this product if commercial quantities are involved in a fire. Fire decomposition products from this product may be toxic if inhaled. Take appropriate protective measures. Extinguishing Media: Not Combustible. Use extinguishing media suited to burning materials. Water fog or fine spray is the preferred medium for large fires. Try to contain spills, minimise spillage entering drains or water courses. Fire Fighting: If a significant quantity of this product is involved in a fire, call the fire brigade. There is little danger of a violent reaction or explosion if significant quantities of this product are involved in a fire. Recommended personal protective equipment is full fire kit and breathing apparatus. Flammability Class: Does not burn.

Section 6 - Accidental Release Measures Accidental release: In the event of a major spill, prevent spillage from entering drains or water courses. As a minimum, wear overalls, goggles and gloves. No special recommendations for clothing materials. Eye/face protective equipment should comprise as a minimum, protective goggles. If there is a significant chance that dusts are likely to build up in cleanup area, we recommend that you use a suitable Dust Mask. Use a P1 mask, designed for use against mechanically generated particles eg silica & asbestos. Stop leak if safe to do so, and contain spill. Because of the environmentally hazardous nature of this product, special care should be taken to restrict release to waterways or drains. Sweep up and shovel or collect recoverable product into labelled containers for recycling or salvage, and dispose of promptly. Consider vacuuming if appropriate. Recycle containers wherever possible after careful cleaning. Refer to product label for specific instructions. After spills, wash area preventing runoff from entering drains. If a significant quantity of material enters drains, advise emergency services. Full details regarding disposal of used containers, spillage and unused material may be found on the label. If there is any conflict between this SDS and the label, instructions on the label prevail. Ensure legality of disposal by consulting regulations prior to disposal. Thoroughly launder protective clothing before storage or re-use. Advise laundry of nature of contamination when sending contaminated clothing to laundry.

Section 7 - Handling and Storage Handling: Keep exposure to this product to a minimum, and minimise the quantities kept in work areas. Check Section 8 of this SDS for details of personal protective measures, and make sure that those measures are followed. The measures detailed below under "Storage" should be followed during handling in order to minimise risks to persons using the product in the workplace. Also, avoid contact or contamination of product with incompatible materials listed in Section 10. Storage: Store in the closed original container in a dry, cool, well-ventilated area out of direct sunlight. Make sure that the product does not come into contact with substances listed under "Incompatibilities" in Section 10. Check packaging - there may be further storage instructions on the label.

Section 8 - Exposure Controls and Personal Protection The following Australian Standards will provide general advice regarding safety clothing and equipment:

---

Product Name: MACSPRED METMAC 600 WG HERBICIDE Page: 3 of 6 This version issued: February, 2023 SAFETY DATA SHEET Issued by: Macspred Pty Ltd Phone: Poisons Information Centre: 13 1126 from anywhere in Australia, (0800 764 766 in New Zealand)

Respiratory equipment: AS/NZS 1715, Protective Gloves: AS 2161, Occupational Protective Clothing: AS/NZS 4501 set 2008, Industrial Eye Protection: AS1336 and AS/NZS 1337, Occupational Protective Footwear: AS/NZS2210. SWA Exposure Limits TWA (mg/m³) STEL (mg/m³) Exposure limits have not been established by SWA for this product. The ADI for Metsulfuron methyl is set at 0.01mg/kg/day. The corresponding NOEL is set at 1mg/kg/day. ADI means Acceptable Daily Intake; NOEL means No-observable-effect-level. Data from Australian ADI List, June 2014. No special equipment is usually needed when occasionally handling small quantities. The following instructions are for bulk handling or where regular exposure in an occupational setting occurs without proper containment systems. Ventilation: This product should only be used in a well ventilated area. If natural ventilation is inadequate, use of a fan is suggested. Eye Protection: Eye protection such as protective glasses or goggles is recommended when this product is being used. Skin Protection: When opening the container, preparing spray and using the prepared spray wear cotton overalls buttoned to the neck and wrist and a washable hat, elbow-length PVC gloves and goggles. Protective Material Types: We suggest that protective clothing be made from the following materials: PVC. Respirator: If there is a significant chance that dusts are likely to build up in the area where this product is being used, we recommend that you use a suitable Dust Mask. Safety deluge showers should, if practical, be provided near to where this product is being used.

Section 9 - Physical and Chemical Properties: Physical Description & colour: Off white granulated solid. Odour: No odour. Boiling Point: Not available. Flash point: Does not burn. Upper Flammability Limit: Does not burn. Lower Flammability Limit: Does not burn. Autoignition temperature: Not applicable - does not burn. Freezing/Melting Point: Solid at normal temperatures. Metsulfuron methyl melts at 158°C. Volatiles: No specific data. Expected to be low at 100°C. Vapour Pressure: Negligible at normal ambient temperatures. Vapour Density: Not applicable. Specific Gravity: No data. Bulk density 0.63. Water Solubility: Wettable. Metsulfuron methyl 2.8g/L at pH 7. pH: No data. Volatility: Negligible at normal ambient temperatures. Odour Threshold: No data. Evaporation Rate: Not applicable. Coeff Oil/water Distribution: No data. Particle Characteristics: Granules. Autoignition temp: Not applicable - does not burn.

Section 10 - Stability and Reactivity Reactivity: This product is unlikely to react or decompose under normal storage conditions. However, if you have any doubts, contact the supplier for advice on shelf life properties. Conditions to Avoid: Protect this product from light. Store in the closed original container in a dry, cool, well-ventilated area out of direct sunlight. Incompatibilities: strong oxidising agents. Fire Decomposition: Combustion forms carbon dioxide, and if incomplete, carbon monoxide and smoke. Water is also formed. May form nitrogen and its compounds, and under some circumstances, oxides of nitrogen. Occasionally hydrogen cyanide gas in reducing atmospheres. May form oxides of sulfur (sulfur dioxide is a respiratory hazard) and other sulfur compounds. Most will have a foul odour. Silicon compounds. Carbon monoxide poisoning produces headache, weakness, nausea, dizziness, confusion, dimness of vision, disturbance of judgment, and unconsciousness followed by coma and death. Polymerisation: This product will not undergo polymerisation reactions.

---

Product Name: MACSPRED METMAC 600 WG HERBICIDE Page: 4 of 6 This version issued: February, 2023 SAFETY DATA SHEET Issued by: Macspred Pty Ltd Phone: Poisons Information Centre: 13 1126 from anywhere in Australia, (0800 764 766 in New Zealand)

Section 11 - Toxicological Information Toxicity: Acute Toxicity: Metsulfuron methyl has very low toxicity in mammals. LD50 is > 5,000 mg/kg in rats. It has low dermal toxicity in tests with rabbits, with an LD50 > 2,000 mg/kg, and low inhalation toxicity in rats, with a median lethal concentration in air of greater than 5 mg/litre air. Moderate but reversible eye irritation has been seen in rabbits, and mild skin irritation has been observed in guinea pigs. No skin sensitization has been observed in guinea pigs. Chronic Toxicity: A 2-year feeding study in rats resulted in a No Observable Effects Level (NOEL) of 25.0 mg/kg/day (or 500 ppm in feed), based on decreased body weights seen at 250 mg/kg/day (5,000 ppm) which was the highest dose tested. EPA has based its reference dose (0.25 mg/kg/day) on this study. Reproductive Effects: Multigeneration studies in rats did not result in any reproductive effects at the highest doses tested of 250 mg/kg/day. Teratogenic Effects: Metsulfuron-methyl did not cause developmental abnormalities to offspring of rats and rabbits fed 1000 mg/kg/day and 700 mg/kg/day respectively during gestation. These doses represent the highest dose tested for each experiment. Mutagenic Effects: The weight of evidence presented by a battery of tests to measure mutagenicity and other adverse effects on DNA indicates that Metsulfuron-methyl is neither mutagenic nor genotoxic. Carcinogenic Effects: Negative for rats and mice in laboratory tests, but studies may not have been at maximum tolerated dose. Organ Toxicity: Metsulfuron-methyl is a moderate eye irritant. Fate in Humans and Other Animals: The chemical is broken down quickly and eliminated from the body. In tests with radio labelled Metsulfuron-methyl in rats, the excretion half-lives ranged from 9 to 16 hours and 23 to 29 hours for rats administered low and high doses, respectively. It did not bioaccumulate in fish. There is no data to hand indicating any particular target organs.

Classification of Hazardous Ingredients

• Hazardous to the aquatic environment (acute) - category 1
• Hazardous to the aquatic environment (chronic) - category 1

Potential Health Effects Inhalation: Short Term Exposure: Available data indicates that this product is not harmful. In addition product is unlikely to cause any discomfort or irritation. Long Term Exposure: No data for health effects associated with long term inhalation. Skin Contact: Short Term Exposure: Available data indicates that this product is not harmful. It should present no hazards in normal use. In addition product is unlikely to cause any discomfort in normal use. Long Term Exposure: No data for health effects associated with long term skin exposure. Eye Contact: Short Term Exposure: This product may be irritating to eyes, but is unlikely to cause anything more than mild transient discomfort. Long Term Exposure: No data for health effects associated with long term eye exposure. Ingestion: Short Term Exposure: Significant oral exposure is considered to be unlikely. However, this product may be irritating to mucous membranes but is unlikely to cause anything more than transient discomfort. Long Term Exposure: No data for health effects associated with long term ingestion. Carcinogen Status: SWA: No significant ingredient is classified as carcinogenic by SWA. NTP: No significant ingredient is classified as carcinogenic by NTP. IARC: No significant ingredient is classified as carcinogenic by IARC.

Section 12 - Ecological Information Very toxic to aquatic organisms, may cause long-term adverse effects to the aquatic environment.

---

Product Name: MACSPRED METMAC 600 WG HERBICIDE Page: 5 of 6 This version issued: February, 2023 SAFETY DATA SHEET Issued by: Macspred Pty Ltd Phone: Poisons Information Centre: 13 1126 from anywhere in Australia, (0800 764 766 in New Zealand)

Breakdown of Chemical in Soil and Groundwater: The breakdown of Metsulfuron-methyl in soils is largely dependant on soil temperature, moisture content, and pH. The chemical will degrade faster under acidic conditions, and in soils with higher moisture content and higher temperature. The chemical has a higher mobility potential in alkaline soils than in acidic soils, as it is more soluble under alkaline conditions. Metsulfuron-methyl is stable to photolysis, but will break down in ultraviolet light. Half-life estimates for Metsulfuron-methyl in soil are wide ranging from 14 - 180 days, with an overall average of reported values of 30 days. Reported half-life values (in days) for soil include: clay - 178 ; sandy loam - 102 ; clay loam - 70 , 14-28 , 14-105 ; silty loam - 120-180. Breakdown of Chemical in Surface Water: The dissipation time for Metsulfuron-methyl was investigated in a mixed wood/boreal forest lake. The DT50 or length of time required for half of the material to dissipate in water was >84 days when high concentrations of Metsulfuron-methyl were applied, and 29.1 days at concentrations that might be expected if the chemical is applied for forestry uses. It is stable to hydrolysis at neutral and alkaline pHs, and has a half-life of 3 weeks at pH 5.0, 25°C and >30 days at 15°C. Breakdown of Chemical in Vegetation: Metsulfuron-methyl is rapidly taken up by plants at the roots and on foliage. The chemical is translocated throughout the plant, but is not persistent. It is broken down to non-herbicidal products in tolerant plants.

Section 13 - Disposal Considerations Disposal: Special help is available for the disposal of Agricultural Chemicals. The product label will give general advice regarding disposal of small quantities, and how to cleanse containers. However, for help with the collection of unwanted rural chemicals, contact ChemClear and for help with the disposal of empty drums, contact DrumMuster where you will find contact details for your area.

Section 14 - Transport Information Not subject to the ADG Code when transported by Road or Rail in Australia, in packages 500kg(L) or less; or IBCs, but classed as Dangerous by IATA and IMDG/IMSBC when carried by Air or Sea transport (see details below). UN Number: 3077, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. Hazchem Code: 2Z Special Provisions: 274, 331, 335, 375, AU01 Limited quantities: ADG 7 specifies a Limited Quantity value of 5 kg for this class of product. Dangerous Goods Class: Class 9: Miscellaneous Dangerous Goods. Packing Group: III Packing Instruction: P002, IBC08, LP02 Class 9 Miscellaneous Dangerous Goods shall not be loaded in the same vehicle or packed in the same freight container with Dangerous Goods of Class 1 (Explosives).

Section 15 - Regulatory Information AIIC: All of the significant ingredients in this formulation are compliant with AICIS regulations.

Section 16 - Other Information This SDS contains only safety-related information. For other data see product literature. Acronyms: ADG Code: Australian Code for the Transport of Dangerous Goods by Road and Rail (7th edition) AIIC: Australian Inventory of Industrial Chemicals SWA: Safe Work Australia, formerly ASCC and NOHSC CAS number: Chemical Abstracts Service Registry Number Hazchem Code: Emergency action code of numbers and letters that provide information to emergency services especially firefighters IARC: International Agency for Research on Cancer NOS: Not otherwise specified NTP: National Toxicology Program (USA) SUSMP: Standard for the Uniform Scheduling of Medicines & Poisons UN Number: United Nations Number

THIS SDS SUMMARISES OUR BEST KNOWLEDGE OF THE HEALTH AND SAFETY HAZARD INFORMATION OF THE PRODUCT AND HOW TO SAFELY HANDLE AND USE THE PRODUCT IN THE WORKPLACE. EACH USER MUST REVIEW THIS SDS IN THE CONTEXT OF HOW THE PRODUCT WILL BE HANDLED AND USED IN THE WORKPLACE. IF CLARIFICATION OR FURTHER INFORMATION IS NEEDED TO ENSURE THAT AN APPROPRIATE RISK ASSESSMENT CAN BE MADE, THE USER SHOULD CONTACT THIS COMPANY SO WE CAN ATTEMPT TO OBTAIN ADDITIONAL INFORMATION FROM OUR SUPPLIERS

---

Product Name: MACSPRED METMAC 600 WG HERBICIDE Page: 6 of 6 This version issued: February, 2023 SAFETY DATA SHEET Issued by: Macspred Pty Ltd Phone: Poisons Information Centre: 13 1126 from anywhere in Australia, (0800 764 766 in New Zealand)

OUR RESPONSIBILITY FOR PRODUCTS SOLD IS SUBJECT TO OUR STANDARD TERMS AND CONDITIONS, A COPY OF WHICH IS SENT TO OUR CUSTOMERS AND IS ALSO AVAILABLE ON REQUEST. Please read all labels carefully before using product. This SDS is prepared in accord with the SWA document “Preparation of Safety Data Sheets for Hazardous Chemicals - Code of Practice” (July 2020) and GHS Revision 7 Copyright © Kilford & Kilford Pty Ltd, February, 2023.